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  The gene for a cytoplasmic intermediate filament (IF) protein of the hemichordate Saccoglossus kowalevskii; definition of the unique features of chordate IF proteins

Zimek, A., & Weber, K. (2002). The gene for a cytoplasmic intermediate filament (IF) protein of the hemichordate Saccoglossus kowalevskii; definition of the unique features of chordate IF proteins. Gene, 288(1-2), 187-193. Retrieved from http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6T39-45BCT3B-3-7&_cdi=4941&_user=38661&_pii=S0378111902004845&_origin=search&_coverDate=04%2F17%2F2002&_sk=997119998&view=c&wchp=dGLzVzz-zSkzS&md5=354cf6b3205e6c26a676b3ac0ee36562&ie=/sdarticle.pdf.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-F3FD-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0027-E5A9-4
Genre: Journal Article

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16484.pdf (Publisher version), 0B
 
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 Creators:
Zimek, A.1, Author              
Weber, K.1, Author              
Affiliations:
1Department of Biochemistry and Cell Biology, MPI for biophysical chemistry, Max Planck Society, ou_578618              

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Free keywords: chordates; deuterostomes; hemichordates; intermediate filament; metazoa; phylogeny
 Abstract: We have isolated full length cDNAs encoding a cytoplasmic intermediate filament (IF) protein of a priapulid (Priapulus caudatus) and of a hemichordate (Saccoglossus kowalevskii) and determined the organisation of the hemichordate gene. As expected, the priapulid protein shows the long coil 1b subdomain and the lamin tail homology segment already known for cytoplasmic IF proteins from 11 other protostomic phyla. Surprisingly, the hemichordate protein follows in domain organisation much more closely the protostomic IF proteins than the chordate IF proteins. Thus, the lack of a lamin tail homology segment together with a deletion of 42 residues in the coil 1b domain is a molecular feature restricted to the chordates. We propose that the known IF subfamilies I to IV developed by gene duplications and sequence drift after the deletion in coil 1b arose at the base of the chordate branch. (C) 2002 Elsevier Science B.V. All rights reserved.

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Language(s): eng - English
 Dates: 2002-04-17
 Publication Status: Published in print
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 Rev. Method: Peer
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Title: Gene
Source Genre: Journal
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Pages: - Volume / Issue: 288 (1-2) Sequence Number: - Start / End Page: 187 - 193 Identifier: -